Pentagon Steel India excels as a leading manufacturer, supplier, and exporter of groove flanges in India. Groove flanges are precision-engineered components that play a crucial role in pipeline systems and equipment, particularly in applications requiring secure sealing and high-pressure resistance. These flanges feature matching groove and tongue faces, where one flange has a raised ring (tongue) and the other has a corresponding depression (groove) machined onto its surface. This ensures an accurate, tight fit and reliable sealing when assembled.

Tongue-and-groove facings are available in both large and small standardized sizes, making them suitable for various industrial applications. Unlike male-and-female flanges, the inner diameters of the tongue and groove do not extend into the flange base, which helps retain the gasket securely on both the inner and outer diameters. This design ensures that groove flanges are ideal for applications requiring high performance, such as pump covers, valve bonnets, and critical piping systems.

One of the key advantages of tongue-and-groove joints is their self-aligning nature, which simplifies installation and ensures a consistent seal. These joints also act as reservoirs for adhesives, enhancing their bonding strength. The design of the scarf joint keeps the axis of loading in line with the joint, reducing the need for extensive machining operations. However, it is crucial that different types of flange faces—such as RTJ (Ring Type Joint), T&G (Tongue & Groove), and F&M (Male & Female)—are never bolted together, as their surfaces do not match, and no gasket is designed to accommodate different types on each side.